MONTH 1: AUGUST

Katy Perry and John Mayer are first spotted together at the Chateau Marmont in August – and so begins the couple's whirlwind seven-month courtship that seemed to flame out by March. Although they appear wild about each other initially, they quickly hit a bump in the road leading to their first split by the end of the month. "They were honestly having fun," a source told PEOPLE. "People made it out to be far more than it was."